The Photocatalytic Charcoal Fiber Knitted Development And Performance Studies

Photocatalysis bamboo charcoal fiber is a new kind of functional fibers for its green environmental protection and health care. It has a board prospect to develop photocatalysis bamboo charcoal fiber fabrics.First, the morphological structure of photocatalysis bamboo charcoal fiber was observed via SEM. The hygroscopicity, tensile properties and electric properties were tested and the suitable mechanical model was created to fit the tensile behavior.Second, developed the photocatalysis bamboo charcoal fiber and cotton blended yarn, discussed the spinning processes and ascertained the parameters of each process. The tensile properties, elastic properties, evenness and hairiness of the blended yarn were tested. The strength of the blended yarns was forecasted according to the blended yarn strength simple model. It indicated that the strength of the blended yarn decreased firstly and then increased along with the increase of photocatalysis bamboo charcoal fiber content. When the content was about 65%, the strength was lowest. The pure photocatalysis bamboo charcoal fiber yarn had better elastic properties, evenness and less harmful hairinesses.Third, developed photocatalysis bamboo charcoal fiber fabrics, tested the indicators of mechanical properties and comfortability, analyzed the relationship between the content, tightness factor and each indicator. The wearability was evaluated via gray near optimal comprehensive evaluation method and the pure photocatalysis bamboo charcoal fiber fabric was best.Forth, the photocatalytic degradability of methylene blue solution by photocatalysis bamboo charcoal fiber knitted fabrics was researched. The relationships were analyzed between the removal rate and the response time, the initial concentration and pH value of methylene blue solution, the content of photocatalysis bamboo charcoal fiber, the distance between the ultraviolet light centre and liquid level. It indicated that it had an obvious photocatalytic degradation effect and the removal rate could reach 67.02%. The initial concentration of solution lower, the pH value higher, the fiber content higher, the distance between light centre and liquid level shorter, the effect was better.